The article describes methods for modeling transient regimes
in current and voltage transformers. In most studies measuring
transformers are modeled in a stationary mode to determine
their metrological characteristics. However, for safe
uninterrupted operation of transformers and electrical networks
it is necessary to carry out their research in dynamic mode. In
particular, the study of the transformers stability to the
ferroresonant phenomena occurring during switching of high
voltage switches is of practical interest. An algorithm for
calculating transient processes in transformers allows to combine
field models developed in the software package COMSOL
Multiphysics and circuit models developed in the programming
environment MATLAB. Special focus is on the approximation of
the magnetization curve of transformers. The mathematical and
simulation models allow us to investigate transient and steadystate
regimes of transformers connected to the external electrical
circuits
